STMicroelectronics - Shares are rising this morning on reports it may split itself up before the end of the year.

LinkedIn - Evercore is upgrading the business social networking company's shares to "overweight, " citing the rollout of a new sales force enhancement productivity tool called "Sales Navigator." It sees the tool driving long-term revenue growth.

CVS Caremark - The L.A. Times reported that the pharmacy benefits manager is under investigation by the U.S. Department of Health for potential Medicare fraud.

Beazer Homes - A one-for-five reverse stock split will become effective today, following approval by the home builder's shareholders.

Google - Google's share of the search market continues to rise, with a 66.7 percent September market share, according to the latest comScore figures. That's a gain of 0.3 percent from August. Microsoft is second with 15.9 percent, followed by Yahoo with 12.2 percent. (Read More: Google, Apple in a 'Defining Fight': Schmidt.)

Activision Blizzard , Electronic Arts - NPD reported sales of videogame hardware and software fell 24 percent in September from a year earlier, the 10th consecutive month of declining sales.

Amazon.com - Chief Executive Officer Jeff Bezos tells the BBC that the company is selling its Kindle e-reader at cost, with profits coming from sales of online content.

Infosys - Infosys saw profit rise nearly 5 percent for its latest quarter, but that was below expectations for the technology outsourcing company.

Western Digital, Seagate Technology - Citi has lowered the hard disk drive maker's shares two notches to "sell" from "buy."